INA219 is a cool IC that measures voltage and current trough a shunt resistor, and relays the information over I2C. It provides the multiple of the two values, thus enabling easy power measurement. Opossum used it along with a Nokia 5110 LCD and a MSP430 LaunchPad to build a nice power-meter.
Via 43-oh.
I did a contract for a dude last year basically doing the same thing (except he wanted 7″ tall 7 segment displays). That was back in my arduino days, so it was just an uno, a shunt, a voltage divider (for voltage input for the arduino’s ADC), and some shift regesters. It’s neat to see that there is an IC for that!
im interested with this sir… can you give me the codes and the papers for this? i want to use it on school…
HI! can you share this project to me? i want to do it…..
thanks